Fix: wrapper random documentation

[lttng-modules.git] / wrapper / random.c

diff --git a/wrapper/random.c b/wrapper/random.c
index c938ae35a4ac2a96a2a2deee26cb645a33792af2..7b91fc7f3e146a4b8046b7996ecb4855812537a5 100644 (file)
--- a/wrapper/random.c
+++ b/wrapper/random.c
@@ -1,10 +1,8 @@
-/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
  *
  * wrapper/random.c
  *
- * wrapper around bootid read. Using KALLSYMS to get its address when
- * available, else we need to have a kernel that exports this function to GPL
- * modules.
+ * wrapper around bootid read. Read the boot id through the /proc filesystem.
  *
  * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  */
@@ -47,7 +45,7 @@ int wrapper_get_bootid(char *bootid)
                ret = -EINVAL;
                goto end;
        }
-       
+
        bootid[BOOT_ID_LEN - 1] = '\0';
        ret = 0;
 end:
@@ -55,6 +53,7 @@ end:
        filp_close(file, current->files);
        return ret;
 }
+EXPORT_SYMBOL_GPL(wrapper_get_bootid);
 
 #else
 
@@ -62,5 +61,6 @@ int wrapper_get_bootid(char *bootid)
 {
        return -ENOSYS;
 }
+EXPORT_SYMBOL_GPL(wrapper_get_bootid);
 
 #endif